posted 10 months ago

Р(X>107)P(X<75)Р(X<120)Р(95<X<105)

posted 10 months ago

posted 10 months ago

-0.25,-1.50,0.50,2.00

posted 10 months ago

f(x)=2 e^{-2 x} u(x)

Using the characteristic function, find the first and second moments.

posted 10 months ago

posted 10 months ago

a) Find the mean revenue from all gas sales.bl Calouletefromoolo

b) Calculate the variance from all gas sales.

c) Calculate the standard deviation from all gas sales.

posted 10 months ago

(b) Board of Directors must appoint a president, a vice president, and a treasurer.There are 5 qualified candidates. In how many ways can the officers be appointed?

posted 10 months ago

posted 10 months ago

(а)Which interval has the fewest students?

• 30 - 50

• 50 - 70

cannot be determined

70-90

How many students in the sample are in the score band between 50 and 70?

posted 10 months ago